Service interval for classic coolants

The original coolants in 2001 Prius were Toyota LLC "red", with recommended 30k mile change intervals. DIY note: please be aware that replacing the inverter coolant involves some tricky air-bleeding, or so I have read.

I also have the 2001 Prius and intend to have it switched to Toyota SLLC "pink" (with 50k mile change interval) in both loops next time around. No one has spoken up forcefully that this would be an inappropriate change, and even one of the classic Prius TSBs suggests that the coolant changeover happened before the model change.

I would like to suggest that no coolants other than these two be considered for Prius use, and that we should not be talking about "10 years" here yet.

 

Man, I want to say that I've downloaded the maintenance log publication as a PDF from somewhere, but it's been so long that I can't remember if I really had done so. Let me do some looking...

UPDATE:

Okay, here's what I found.

I remember printing the pages from "John1701's super-freakin-awesome site":

2001 Scheduled Maintenance Log
2004 Scheduled Maintenance Log

Toyota also has these pages online, although I couldn't find all of it in a single PDF file...

Scheduled Maintenance Guides from Toyota